Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4600942 | Secure coding and decoding system and method for television program signals | Robert William Richard Field, Ronald R. Gerlach | 1986-07-15 |
| 4410911 | Multiple signal transmission method and system, particularly for television | Robert William Richard Field, Ronald R. Gerlach, Robert S. Block | 1983-10-18 |
| 4398216 | Multiple signal transmission method and system, particularly for television | Robert William Richard Field, Ronald R. Gerlach, Robert S. Block | 1983-08-09 |